Crestron electronic Green Light GLPS-HSW-FT - Manual (Page 25)

Crestron Commercial Lighting Design Guide
21
Power Switching
GLPS Panels
Crestron GLPS Series power switching panels feature field-replaceable switching modules with a choice of relay technologies to
address a wide range of applications and budgets. In addition to switching, some Green Light Power Switching panels also allow the
option to add dimming control for 0-10V fluorescent ballasts and 0-10V LEDs. Switching relays are available in arcless or standard form.
Arcless relays provide increased durability for a higher rated lifetime over standard relays.
GLPS Panel Naming System
When ordering a power switching panel, construct a model name as shown above. Possible choices are listed underneath each blue
box. The numbered steps below describe each choice in detail.
Example:
GLPS-HSW-MLO-30-120-10
1. Relay Type
GLPS-___-___-___-___-___-___
Determine the type of switching relay required. Use the following table to determine the appropriate relay. If you wish to mix relay types
within a panel, see the GLPS-C panel on page 23.
Relays
SW HSW FLV
Switching Relay Types High-inrush Arcless high-inrush Arcless high-inrush
Voltages 120/230/277 120/230/277 120/230/277
Lighting Output Capacity 16A 16A 16A
Motor Output Capacity
(120/230/277 V)
1/2/2 hp 0.5/1/1 hp 0.5/1/1 hp
Rated Relay Lifetime Up to 100,000 1,000,000 1,000,000
0-10V Dimming No No Yes
Additional Relay Info Page 25 Page 26 Page 27
2. Feed Type
GLPS-___-___-___-___-___-___
MLO Main Lug Only with 20A branch breakers
MCB60 60A back-fed main circuit breaker with 20A branch breakers
MCB80 80A back-fed main circuit breaker with 20A branch breakers
MCB100 100A back-fed main circuit breaker with 20A branch breakers
MCB125 125A back-fed main circuit breaker with 20A branch breakers
GLPS Feed Type
Number of
Loads
- -
1
2
3
...
40
41
42
MLO
MCB60
MCB80
MCB100
MCB125
Voltage AIC Rating
-
120
277
10K
18K
22K
35K
65K
-
Relay Type
- -
Door
Option
ND
SW
HSW
FLV
What is Arcless Switching?
Crestron offers two switching relay types: high-inrush and arcless high-inrush. Arcless high-inrush relays use a TRIAC to handle the
current turn on. Within milliseconds, the continuous load is transferred from the TRIAC to a robust 50A mechanically-latching relay.
All switching occurs at the zero-cross point of the AC waveform under microprocessor control. This is a complete solution
eliminating arcing at the physical relay contacts during turn on and turn off. By eliminating arcing, the relay lifetime is increased
substantially.